VISHAY SMCJ188A

Mfr. Part

SMCJ188A

Manufacturer

Electro-Films (EFI) / Vishay

Y-IC is a quality distributor of Electro-Films (EFI) / Vishay products. We supply original parts and back them with fast service and strong technical support.

Detailed Description

High-voltage transient voltage suppressor (TVS) device in the SMCJ family, used to clamp surges and ESD on high-voltage lines. Often grouped under protection/specialized ICs in catalogs, this part is a unidirectional TVS for safeguarding sensitive electronics. The “188A” identifier indicates a high working standoff voltage class in the SMCJ 1500 W family. Ideal where fast, repeatable surge clamping and rugged package reliability are needed.

Key Features

Fast surge clamping to protect downstream circuitry

High surge capability typical of SMCJ (DO-214AB) TVS family

Unidirectional polarity for DC and rectified AC rails

Surface-mount package for automated assembly

Low incremental dynamic resistance compared with general-purpose diodes

Glass-passivated die construction in qualified versions for stability

RoHS compliant, lead-free plating in standard tape-and-reel options

Key Advantages

Protects against lightning surge, EFT, and inductive load transients

Stable clamping performance over temperature and time

Compact footprint saves PCB area versus through-hole suppressors

Simple two-pin drop-in protection with minimal design effort

Widely second-sourced value (188) eases supply assurance

Backed by Vishay’s process control and quality track record

Packaging

Package type: SMCJ family surface-mount TVS (industry DO-214AB outline; supplier listing shows code 862; verify exact mechanical outline in the datasheet)

Body material: Molded epoxy encapsulation, UL-rated, moisture-resistant

Leads/termination: Tin-plated terminations, compatible with lead-free reflow

Pin configuration: 2 terminals, unidirectional polarity (cathode marked)

Size envelope: SMCJ/DO-214AB footprint (compact, low-profile; see datasheet drawing for length/width/height and land pattern)

Tape-and-reel availability for pick-and-place

Thermal characteristics: Designed for high transient power dissipation with low thermal resistance junction-to-ambient when mounted on recommended pads; observe derating curves in datasheet

Electrical properties (family-typical): High peak pulse power capability (SMCJ class), very fast response to transients, low leakage at working standoff voltage. For exact VRWM, VBR, VC, IPP, and leakage values of SMCJ188A, use the product datasheet.

Lifecycle

Status: As of the latest public information, SMCJ family devices from Vishay remain active. Always confirm current status with the datasheet and our sales team.

Nearing discontinuation: No broad NRND/EOL notice known for the family; verify current status before design-in.

Equivalent or alternative models:

- Vishay: SMCJ188A ordering options (e.g., suffixes for packaging/lead finish such as SMCJ188A-E3/57T). Choose the exact suffix per your logistics and plating needs.

- Cross-brand parametric equivalents commonly available in SMCJ 188 class (validate all electrical/mechanical details before substitution): Littelfuse SMCJ188A, Bourns SMCJ188A, Diodes Incorporated SMCJ188A, MCC SMCJ188A, Semtech/ProTek devices with “SMCJ188A” designation.

If you need vetted, fully compatible alternates or lifecycle confirmation, please contact our Y-IC sales team via our website for up-to-date cross-reference and supply options.

Key Application Areas

Surge and ESD protection on high-voltage DC buses

Industrial control and factory automation I/O protection

Motor drives, inverters, and power conversion front-ends

Telecom and networking equipment line protection (high-voltage nodes)

Smart meters, building automation, and grid interface electronics

General-purpose protection for inductive load switching transients

Datasheet

Y-IC hosts the most authoritative datasheet for SMCJ188A on the product page. We recommend downloading the datasheet here to get exact electrical limits, mechanical drawings, land patterns, and derating curves for your design and qualification.

Request for Quotation Now

Ready to secure stock and pricing on SMCJ188A? Visit our website to Get a Quote now. Limited Time Offer on available inventory of 2200 pcs. Need deeper technical or cross-reference help? Learn More on the product page or contact our sales team for fast support.